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Circ Cardiovasc Interv. 2008 Dec;1(3):201-8. doi: 10.1161/CIRCINTERVENTIONS.108.788745.

Poor 1-year outcomes after percutaneous coronary interventions in systemic lupus erythematosus: report from the National Heart, Lung, and Blood Institute Dynamic Registry.

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  • 1Division of Rheumatology and Clinical Immunology, University of Pittsburgh School of Medicine, 3500 Terrace Street, Pittsburgh, PA 15213, USA. mckinnonk@dom.pitt.edu

Abstract

BACKGROUND:

Women with systemic lupus erythematosus (SLE) have premature and accelerated atherosclerosis. Although percutaneous coronary intervention (PCI) is used frequently to treat coronary artery disease in SLE, little is known regarding PCI outcomes immediately after PCI and after discharge.

METHODS AND RESULTS:

Baseline demographic, procedure-related, and adverse outcome data on consecutive patients undergoing PCI during 5 recruitment "waves" of the National Heart, Lung, and Blood Institute Dynamic Registry across 23 clinical centers were collected. SLE patients (n=28) were compared with non-SLE patients (n=3385). SLE patients were younger and more often female in comparison with non-SLE patients undergoing PCI. SLE patients were less likely than non-SLE patients to have hyperlipidemia but had a similar prevalence of hypertension, diabetes mellitus, and tobacco use. The prevalence of multivessel disease was similar between groups. Initial intervention success (by angiographic definition) was not significantly different between groups. At 1 year, SLE patients were more likely to experience a myocardial infarction (15.6% versus 4.8%, P=0.01) and more often required repeat PCI (31.3% versus 11.8%, P=0.009) than non-SLE patients, even after adjustment for important covariates.

CONCLUSIONS:

SLE patients had significantly worse cardiovascular outcomes at 1 year than non-SLE patients. Even considering the small number of SLE patients, these differences were striking. Further study is warranted to explore other factors potentially accounting for this disparity, including SLE disease activity and duration, presence of hypercoagulable state, and immunosuppressive therapy.

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